Home / 641,342,628.10-962,013,942.15-549,509,623.30

Finding the Fourth Proportional to 641,342,628.10, 962,013,942.15 and 549,509,623.30

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Solution

The fourth proportional to 641,342,628.10, 962,013,942.15 and 549,509,623.30 is: 824,264,434.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,342,628.10 : 962,013,942.15 = 549,509,623.30 : x
  2. Step 2: Convert to fraction form
    641,342,628.10/962,013,942.15 = 549,509,623.30/x
  3. Step 3: Cross multiply
    641,342,628.10x = 962,013,942.15 × 549,509,623.30
  4. Step 4: Simplify right side
    641,342,628.10x = 528,635,918,960,194,432
  5. Step 5: Solve for x
    x = 528,635,918,960,194,432/641,342,628.10
  6. Step 6: Final answer
    x = 824,264,434.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.